Hoistino apparatus



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0. W. HUNT.

HOISTING APPARATUS.

Patented 001;. 26, 1 886.

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(No Model.) 2 Sheets-Sheet 2.

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IHOISTING'APPARATUS.

N0. 351,446. I Patented Oct. 26, 1886.

' I UNITED STATES P TENT 'OFFICE.

CHARLES W. HUNT, OF WEST NEW BRIGHTON, ASSIGNOR TO THE C. IV. HUNT COMPANY, OF NEW YORK, N. Y.

HOIS'TINGAPPARATUS.

SPECIFICATION forming part of Letters Patent No. 351,446, dated October 26, 1886.

Application filed August 4, 1886.

' To all whom it may concern.-

I apparatus; and Fig. 3 is a cross-section of the Be it known that I, CHARLES W. HUNT, of West New Brighton, in the county of Richmond and State of New York, have invented an Improvement in Hoisting Apparatus, of which the following is a specification.

In Letters Patent No. 170,442, granted to me November 30, 1875, a swinging boom is shown upon which are'tracks and a truck, by which a bucket or other device is raised in delivering coal or other material.

My present invention relates to an improvement by which the middle portion of the boom is supported, to prevent the same bending or breaking under heavy loads, and at the same time the boom is free to be swung into the position for use or back out of the way when not in use.

In the drawings, Figure 1 is a plan view of my improvement, the dotted lines showing the positions of the parts when the boom is swung aside out of use. Fig. 2 is a side view of the boom and track at the line mm, Fig. 2, and an elevation of the intermediate supports.

The boat is represented at'A, the wharf or pier at R, and the frame-work A upon the pier supports the booms H H. These parts the hoisting-rope D, truck G, bucket B, and pulleys O, O, and N are similar to those in my aforesaid patent, and the bracket 0 is fastened to the boom, and has bearings O and 0 upon the frame-work A.-

The cross-bar F is pivoted at F to the outer end of the booms, and there are braces E from the frame-work A to the outer ends of the cross-bar F, and diagonal stays T from the upper part of the framing A to the pivotal connections at the ends of the cross-bar F. These parts are similar to those shown in an application of like date herewith, No. 209,938, filed August 4, 1886.

In order to support the middle portion of the booms H H, I attach to the same the bowiron I, the same being secured to the outer faces of the boom timbers or tracks H H, and extending up above such tracks a distance sufficient to allow the truck G to pass freely beneath the same, and upon the top of this bow-iron I is a pivot, 3, by which is attached the yoke-bar 4. This yoke-bar is preferably Serial No. 209,939. (No model.)

of the same length as the cross-bar F, and there are below the ends'of the yoke-bar the braces 6, that are pivoted at their lower ends to the braces E or frame-work A, and "at their outer and upper ends to the yoke-bar 4. Theseparts only may be used, as the braces 6 -will afford a considerable support to the boom H; but I prefer to employ in addition to the braces, or instead of them, the secondary stays 7, extending from the pivots at the outer ends of the yoke bar4 up to the upper portion of the frame-work A, so as to increase the strength of the parts that support the boom.

If the yoke-bar 4, is the same length as the cross-bar F, the braces E and 6 and stays T and 7 will be in the same respective vertical planes when the boom is in use, and the yokebar will be parallel, or nearly so, to the crossbar when the boom isswung aside out of use; but I do not limit myself in this particular, as the yoke-bar may be longer or shorter than the crossbar, the pivots being properly placed, so that the parts will swing with the boom into either of its positions.

-I claim as my invention 1. The combination, with the boom and its supporting frame-work, and the bearings upon which it swings, of the bow-iron I above the track, the yoke-bar 4, pivoted to the same, and the braces 6, substantially as set forth.

2. The combination, with the boom and the frame-work, and bearings supporting the same, ofthe bow-iron I above the boom, the yokebar 4, pivoted to the same, and the secondary stays 7, extending from the yoke-bar to the frame-work, substantially as set forth.

3. The combination, with the boom and its supporting frame-work, and the bearings upon which it swings, of the bow-iron I above the track, the yoke-bar 4, pivoted to the same, the braces 6, and secondary stays 7, connected at their respective ends to the yoke-bar and the frame-work, substantially as set forth 4. The combination, with the boom and its supporting framework, and the bearings upon which the same swings, of the cross-bar F, braces E, stays T, connected at their respective ends to the cross-bar and the frame-work, the bow-iron I above and connecting the trackbars of. the boom, and 'a connection from the same to the frame-work for supporting the ICO boom near the middle thereof, substantially as same, the pivots of the braces at the yoke-baiset forth. being farther apart than the pivots at the' 5. The combination, with thoinelined boom, other end of the braces, for causing the yokethe frame-work for supporting the same, and piece to assume a slightly diagonal position, 15 5 the bearings upon which the boom swings, of substantially as and for the purposes specified. the bow-iron I, connected to the boom, ayoke- Signed by me this 19th day of June, A. D. bar pivoted to the same, and braces or stays 1886.

connecting the ends of the yoke-bar with the CHAS. W, HUN '1. frame-work, substantially as set forth. "Witnesses:

1o 6. The combination, with the boom, of the G120. T. PINOKNEY,

pivoted yoke-baiand braces pivoted to the WALLACE L. SERRELL. 

